PlainWater
States → Arizona

Community Water System · PWS AZ0414403

Howard Cantonment Area

Yuma, Arizona 85365 - drinking water served from groundwater sources to 1,500 people, tracked in EPA SDWIS and UCMR5.

1,500
People served
164
EPA violations
1
Health-based
Untested
UCMR5 result

The verdict

EPA records 164 drinking-water violations at Howard Cantonment Area, 1% of them health-based - above the Arizona per-system average.

164
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
1,500
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Howard Cantonment Area

Howard Cantonment Area is a federal-owned community water system that delivers drinking water to 1,500 residents in Yuma, Arizona (Yuma County) through 349 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 164 total violations for this system , of which 1 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 132 monitoring and reporting violations are on file. The most recent violation on record dates to 2016.

The most frequently cited contaminant at this system is Chlorine, recorded in 28 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Arizona, EPA tracks 1,493 public water systems serving 7,322,166 people, with 228,944 cumulative violations and 15,663 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 153.3 violations. Statewide, 145 of 152 UCMR5-tested systems have reported PFAS detections (95.4%).

Howard Cantonment Area's 164 violations sit above the Arizona average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
1,500
Total Violations
164
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Federal
Connections
349
County
Yuma
School/Daycare
No
MCL Violations
1
Monitoring Violations
132
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 28 2016
Fluoride MR 10 1991
Coliform (TCR) MR 9 2007
Consumer Confidence Rule Other 9 2016
Nitrate MR 5 2012
TTHM MR 4 2012
Total Haloacetic Acids (HAA5) MR 4 2012
Gross Alpha, Excl. Radon and U MR 3 2009
Radium-228 MR 3 2009
Combined Radium (-226 and -228) MR 3 2009
Lead and Copper Rule MR 2 2005
Combined Uranium MR 2 2009
2,3,7,8-TCDD MR 2 2009
Radium-226 MR 2 2009
Cadmium MR 1 1991
Chromium MR 1 1991
Mercury MR 1 1991
Selenium MR 1 1991
DICHLOROMETHANE MR 1 2000
cis-1,2-Dichloroethylene MR 1 2000
p-Dichlorobenzene MR 1 2000
trans-1,2-Dichloroethylene MR 1 2000
1,2-Dichloropropane MR 1 2000
CHLOROBENZENE MR 1 2000
Toluene MR 1 2000
Ethylbenzene MR 1 2000
Styrene MR 1 2000
Asbestos MR 1 2003
Endrin MR 1 2009
BHC-GAMMA MR 1 2009

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Howard Cantonment Area.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID AZ0414403 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Arizona Drinking Water Authority

Arizona DEQ, Drinking Water Program is the primacy agency that licenses and inspects Howard Cantonment Area under EPA-delegated authority.

Open AZ regulator portal

Source: Arizona DEQ, Drinking Water Program

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2016 Chlorine MR 28 SDWIS / AZ0414403 / 0999
2016 Consumer Confidence Rule Other 9 SDWIS / AZ0414403 / 7000
2012 Nitrate MR 5 SDWIS / AZ0414403 / 1040
2012 TTHM MR 4 SDWIS / AZ0414403 / 2950
2012 Total Haloacetic Acids (HAA5) MR 4 SDWIS / AZ0414403 / 2456
2009 Gross Alpha, Excl. Radon and U MR 3 SDWIS / AZ0414403 / 4000
2009 Radium-228 MR 3 SDWIS / AZ0414403 / 4030
2009 Combined Radium (-226 and -228) MR 3 SDWIS / AZ0414403 / 4010
2009 Combined Uranium MR 2 SDWIS / AZ0414403 / 4006
2009 2,3,7,8-TCDD MR 2 SDWIS / AZ0414403 / 2063
2009 Radium-226 MR 2 SDWIS / AZ0414403 / 4020
2009 Endrin MR 1 SDWIS / AZ0414403 / 2005
2009 BHC-GAMMA MR 1 SDWIS / AZ0414403 / 2010
2009 Methoxychlor MR 1 SDWIS / AZ0414403 / 2015
2009 Dalapon MR 1 SDWIS / AZ0414403 / 2031

How Howard Cantonment Area Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Howard Cantonment Area Arizona avg Federal benchmark
Total violations 164 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 1 10.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 95.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,500 4,904 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,493 regulated public water systems in Arizona.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Howard Cantonment Area water safe to drink? ▼
Howard Cantonment Area (PWS ID: AZ0414403) has 164 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,500 people using Groundwater sources.
How many people does Howard Cantonment Area serve? ▼
Howard Cantonment Area serves 1,500 people in Yuma, Arizona. It is a Federal-owned system using Groundwater water sources with 349 service connections.
What type of violations does Howard Cantonment Area have? ▼
Howard Cantonment Area has 164 total violations: 1 health-based violations (MCL exceedances or treatment failures), 132 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Howard Cantonment Area water? ▼
No PFAS testing data is available for Howard Cantonment Area under the EPA's UCMR5 monitoring program.
What water source does Howard Cantonment Area use? ▼
Howard Cantonment Area uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.